(Name and
telephone number, including area code, of the person to contact in connection with this report.)

Check the appropriate box to
indicate the rule pursuant to which this form is being filed,

and provide the period to which the information in this form applies:

x

Rule 13p-1 under the Securities and Exchange Act (17 CFR 240.13p-1) for the reporting period from January 1 to December 31, 2014.

Section 1  Conflict Minerals Disclosure

Item 1.01:

Conflict Minerals Disclosure and Report

SK Telecom Co., Ltd. is Koreas leading
wireless telecommunications services provider and has continued to pioneer the commercial development and implementation of state-of-the-art wireless technologies. All references to we, us, or our shall mean SK
Telecom Co., Ltd. and unless the context otherwise requires, its consolidated subsidiaries. We earn revenue principally from monthly plan-based fees, usage charges for outgoing voice calls, usage charges for wireless data services and value-added
service fees paid by subscribers to our wireless services, as well as interconnection fees paid to us by other telecommunications operators for use of our network by their customers and subscribers. We also derive revenue from businesses operated by
our consolidated subsidiaries, including broadband Internet and fixed-line telephone services, various platform businesses and handset sales.

A company is required to file this Report pursuant to Rule 13p-1 promulgated under the Securities Exchange Act of 1934, as amended, if it
manufactures, or contracts to manufacture, products for which certain specified minerals are necessary to the functionality or production of the products, regardless of the geographic origin of the minerals and whether or not they fund armed
conflict. These minerals are referred to as conflict minerals and consist of columbite-tantalite (coltan), cassiterite and wolframite (and their derivatives tantalum, tin, and tungsten), and gold.

We manufacture, or contract to manufacture, certain products for which conflict minerals are necessary to the functionality or production of
those products. Accordingly, we conducted in good faith a reasonable country of origin inquiry (RCOI) regarding conflict minerals contained in our products manufactured in calendar year 2014. We believe our RCOI was reasonably designed to determine
whether any conflict minerals contained in those products originated in the Democratic Republic of the Congo or an adjoining country (together, the Covered Countries), or are from recycled or scrap sources.

We first conducted a detailed review of our purchases of materials necessary to the functionality or production of our products that we
manufactured in 2014 to determine whether we purchase any conflict minerals. We determined that certain of our products (collectively, the covered products) contain some conflict minerals (namely, tantalum, tin and gold) that are
necessary to the functionality or production of those products. We do not directly purchase conflict minerals, nor do we have any direct relationship with any mines or smelters that process these minerals. In conducting our RCOI, we conducted a
supply-chain survey with our subsidiaries and suppliers using the Electronic Industry Citizenship Coalition and Global e-Sustainability Conflict Minerals Reporting Template. We required our direct suppliers of materials for covered products to
complete certifications concerning their manufacturing practices and the materials they supply to us. All of our suppliers of materials for covered products manufactured in 2014 certified that the conflict minerals contained in materials supplied to
us were not sourced from Covered Countries.

As a result of our RCOI, we determined that we have no reason to believe that the conflict
minerals contained in our products originated from the Covered Countries or were not from recycled or scrap sources.

The information
contained in this section is also publicly available on website at www.sktelecom.com.

Item 1.02:

Exhibits

Not applicable.

Section 2  Exhibits

Item 2.01:

Exhibits

Not applicable.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by
the duly authorized undersigned.